کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10236225 | 45140 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of Cu(II) and Cd(II) on the performance of sequencing batch reactor treatment system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of Cu(II) and Cd(II) on the performance of sequencing batch reactor treatment system Effects of Cu(II) and Cd(II) on the performance of sequencing batch reactor treatment system](/preview/png/10236225.png)
چکیده انگلیسی
The effects of Cu(II) and Cd(II)-containing wastewater on activated sludge microorganisms were investigated. The addition of Cu(II) and Cd(II) affected significantly the activities of activated sludge microorganisms in the bio-oxidation process, as indicated by drastic reduction in the specific oxygen uptake rate (SOUR) values. The sequencing batch reactor (SBR) system was operated with FILL, REACT, SETTLE, DRAW, and IDLE modes in the time ratio of 0.5:3.5:1.0:0.75:0.25 for one cycle time of 6Â h. The addition of Cu(II) and Cd(II)-containing synthetic wastewater into the SBR system decreased the chemical oxygen demand (COD) and metals removal efficiencies. The examination of the pseudo first-order rate constant, kâ², providing a quantitative estimate of the inhibitory effect of the metal, showed that the kâ² value with the metals addition was around 10 times lower than that without metals addition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 40, Issue 1, January 2005, Pages 453-460
Journal: Process Biochemistry - Volume 40, Issue 1, January 2005, Pages 453-460
نویسندگان
Soon-An Ong, Poh-Eng Lim, Chye-Eng Seng, Makoto Hirata, Tadashi Hano,